For over a century, astronomers have known about the impact of artificial light on the night sky. But this was just the “tip of the iceberg”. Studies into the effects of light on the biology and behaviour of wildlife are revealing a more profound physical impact.

The changes have been subtle, beginning almost 100 years ago, and have reached their current peak impact with the installation of white-light LEDs. These lights have magnified the effects from academic interest to a public outcry, and from the esoteric to common sense.

Let’s explore why we should listen to our common sense. Come and hear about the proven impact of artificial light at night on the ecology of animals and plants.